package com.easybuy.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.alibaba.fastjson.JSON;
import com.easybuy.entily.News;
import com.easybuy.service.NewsService;
import com.easybuy.serviceimpl.NewsServiceImpl;

public class NewsServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public NewsServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		NewsService ew = new NewsServiceImpl();
		String opr = request.getParameter("opr");
		List<News> list = null;
		if("list".equals(opr)){
			list = ew.AllInfo(0,0,0);
			String json = JSON.toJSONString(list);
			out.print(json);
		}else if("listByid".equals(opr)){
			int id = Integer.valueOf(request.getParameter("id"));
			News list2=ew.InfoById(id);
			String json=JSON.toJSONString(list2);
			out.print(json);
		}else if("select".equals(opr)){//��ҳ��ѯ������Ϣ
			List<News> list2=ew.AllInfo2();
			String json=JSON.toJSONString(list2);
			out.print(json);
		}
		
		
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		
		doGet(request,response);
		
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
